Plectostylus variegatus
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Ordo: Pulmonata
Familia: Bothriembryontidae
Genus: Plectostylus
Name
Plectostylus variegatus (Pfeiffer, 1842) – Wikispecies link – Pensoft Profile
- Succinea variegata Pfeiffer, 1842: 56; Pfeiffer 1843: 187. Bulimus elegans: Hupé in Gay 1854: 102, pl. 3, fig. 1. Bulimulus (Plectostylus) variegatus: Pilsbry 1897[1]: 5, pl. 6, figs 86–88. Plectostylus variegatus: Breure 1978[2]: 202, pl. 9, figs 17–18; Breure 1979[3]: 202; Stuardo and Vega 1985[4]: 136; Valdovinos and Stuardo 1988[5]: 137, figs 86–88, pl. 2, figs 19–21; Neubert and Janssen 2004[6]: 233, pl. 13, fig. 155. Plectostylus broderipii: Breure and Ablett 2012[7]: 43, figs 5C–D, 5iii. (syn. n.)
Material examined
Hills near Vallenar (28°34'S, 70°45'W), RCG (unnumbered), 5 specimens.
Diagnosis
This relatively large species (up to 52 mm) has a thin but stout shell, with an acute, somewhat short spire and five slightly convex whorls sculptured by thin growth lines and fine spiral threads. The aperture is large, oval and slightly angulated in the columellar lip, which is completely white in its anterior part.
Distribution and remarks
Valdovinos and Stuardo (1988)[5] cited this species from Paposo (25°05'S, 70°25'W) to Lomas de Huasco (28°20'S, 71°15'W). According to Breure and Ablett (2012)[7] this species is a subjective synonym of Plectostylus broderipii. The specimens here examined seem slightly different; the shells are more elongated, with a larger aperture and a more acute spire. Some specimens have rimate shells, with a pseudo-umbilicus formed by the folding of the columellar lip. These specimens have a thin, opaque, persistent and delicate brownish periostracum.
Taxon Treatment
- Araya, J; Catalán, R; 2014: A review of the non-bulimulid terrestrial Mollusca from the Region of Atacama, northern Chile ZooKeys, 398: 33-51. doi
Other References
- ↑ Pilsbry H (1897–1898) Manual of Conchology: American Bulimulidae: Bulimulus, Neopetraeus, Oxychona and South American Drymaeus. Academy of Natural Sciences of Philadelphia, Conchological Section. Second Series: Pulmonata. Vol. 11. 339 pp. 51 pl.
- ↑ Breure A (1978) Notes on and descriptions of Bulimulidae (Mollusca, Gastropoda). Zoologische Verhandelingen 164: 1-255.
- ↑ Breure A (1979) Systematics, phylogeny and zoogeography of Bulimulinae (Mollusca). Zoologische Verhandelingen 168: 1-215.
- ↑ Stuardo J, Vega R (1985) Synopsis of the land Mollusca of Chile. With remarks on distribution. Studies on Neotropical Fauna 20(3): 125-146. doi: 10.1080/01650528509360682
- ↑ 5.0 5.1 Valdovinos C, Stuardo J (1988) Morfología, sistemática y distribución del género Plectostylus Beck 1837 (Pulmonata: Bulimulidae). Gayana Zoología 52(1): 115-195.
- ↑ Neubert E, Janssen R (2004) Die Typen und Typoide des Natur-Museums Senckenberg, 84: Mollusca: Gastropoda: Pulmonata: Orthalicoidea: Bulimulidae (2), Orthalicidae, Placostylidae. Archiv für Molluskenkunde 133: 193-297.
- ↑ 7.0 7.1 Breure A, Ablett J (2012) Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London. ZooKeys 182: 1-70. doi: 10.3897/zookeys.182.2720
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